mirror of
https://github.com/openziti/ziti.git
synced 2026-10-12 23:32:02 +00:00
Michael Quigley
118 lines
3.8 KiB
Go
118 lines
3.8 KiB
Go
/*
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Copyright 2019 NetFoundry, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package handler_ctrl
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import (
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"github.com/golang/protobuf/proto"
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"github.com/michaelquigley/pfxlog"
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"github.com/netfoundry/ziti-fabric/metrics"
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"github.com/netfoundry/ziti-fabric/pb/ctrl_pb"
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"github.com/netfoundry/ziti-fabric/router/forwarder"
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"github.com/netfoundry/ziti-fabric/router/handler_link"
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"github.com/netfoundry/ziti-fabric/xgress"
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"github.com/netfoundry/ziti-foundation/channel2"
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"github.com/netfoundry/ziti-foundation/identity/identity"
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"github.com/netfoundry/ziti-foundation/transport"
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)
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type dialHandler struct {
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id *identity.TokenId
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ctrl xgress.CtrlChannel
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linkOptions *channel2.Options
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forwarderOptions *forwarder.Options
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forwarder *forwarder.Forwarder
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metricsRegistry metrics.Registry
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}
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func newDialHandler(id *identity.TokenId, ctrl xgress.CtrlChannel, linkOptions *channel2.Options, forwarderOptions *forwarder.Options, forwarder *forwarder.Forwarder, metricsRegistry metrics.Registry) *dialHandler {
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return &dialHandler{
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id: id,
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ctrl: ctrl,
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linkOptions: linkOptions,
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forwarderOptions: forwarderOptions,
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forwarder: forwarder,
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metricsRegistry: metricsRegistry,
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}
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}
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func (h *dialHandler) ContentType() int32 {
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return int32(ctrl_pb.ContentType_DialType)
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}
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func (h *dialHandler) HandleReceive(msg *channel2.Message, ch channel2.Channel) {
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log := pfxlog.ContextLogger(ch.Label())
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log.Info("received link connect request")
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dial := &ctrl_pb.Dial{}
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if err := proto.Unmarshal(msg.Body, dial); err == nil {
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address, err := transport.ParseAddress(dial.Address)
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if err == nil {
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linkId := h.id.ShallowCloneWithNewToken(dial.Id)
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name := "l/" + linkId.Token
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dialer := channel2.NewClassicDialer(linkId, address, nil)
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ch, err := channel2.NewChannel(name, dialer, h.linkOptions)
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if err == nil {
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link := forwarder.NewLink(linkId, ch)
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if err := link.Channel.Bind(handler_link.NewBindHandler(h.id, link, h.ctrl, h.forwarder)); err == nil {
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h.forwarder.RegisterLink(link)
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go metrics.ProbeLatency(
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link.Channel,
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h.metricsRegistry.Histogram("link."+linkId.Token+".latency"),
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h.forwarderOptions.LatencyProbeInterval,
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)
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linkMsg := &ctrl_pb.Link{Id: link.Id.Token}
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body, err := proto.Marshal(linkMsg)
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if err == nil {
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msg := channel2.NewMessage(int32(ctrl_pb.ContentType_LinkType), body)
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if err := h.ctrl.Channel().Send(msg); err == nil {
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log.Infof("link [l/%s] up", link.Id.Token)
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} else {
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log.Errorf("unexpected error sending link (%s)", err)
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}
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} else {
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log.Errorf("unexpected error (%s)", err)
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}
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} else {
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log.Errorf("error binding link (%s)", err)
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}
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} else {
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log.Errorf("link dialing failed [%s]", address.String())
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fault := &ctrl_pb.Fault{Subject: ctrl_pb.FaultSubject_LinkFault, Id: linkId.Token}
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body, err := proto.Marshal(fault)
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if err == nil {
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msg := channel2.NewMessage(int32(ctrl_pb.ContentType_FaultType), body)
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if err := h.ctrl.Channel().Send(msg); err != nil {
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log.Errorf("error sending fault (%s)", err)
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}
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} else {
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log.Errorf("unexpected error (%s)", err)
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}
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}
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} else {
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log.Errorf("link address parsing failed (%s)", err)
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}
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} else {
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log.Errorf("unexpected error (%s)", err)
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}
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}
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